Surf Forecasts:
Jaconé surf forecast from 13 Sep 2026:
- Best quality surf: Friday 18 Sep, 12AM (local time) - 7ft (2.1m), 12s period, S swell with offshore winds.
- Most powerful swell: Thursday 17 Sep, 9PM (local time) - 7ft (2.2m), 12s period, S swell with 1,332 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 12AM (local time) - 4.5ft (1.3m), 8s period with SSW swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 12AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.2m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 2.2m 12s and forecast to arrive on Thursday (Sep 17) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Sep 18) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 14th Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 12AM (Fri 18th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 9PM (Thu 17th Sep) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's cooking.
This stretch at Jaconé starts off pretty slow. The first few days are flat and choppy, so don't bother. The first real chance to get wet is on Thursday the 17th. Swell hits 6ft from the S, with a 9-second period. Morning wind is light and cross-off, so it’ll be clean. The combined energy is moderate (579). It’s not a classic, but it’s a start.
Friday the 18th is similar, with 5ft swell from the S and a longer 11-second period giving it more punch. The wind is a strong offshore from the ENE at 19 mph, which will keep the waves clean but it’s a fresh breeze. Energy is still moderate (774). It's a solid day for the experienced.
Saturday the 19th looks the cleanest. Swell drops to 4ft from the S, but the period holds at 10 seconds. The wind is light offshore from the NE in the morning, almost glassy. That’s a major positive. The energy is moderate (542). This is the pick for an intermediate surfer looking for clean, user-friendly waves.
The real standout window opens Monday the 21st. The afternoon session is glassy, with a 6ft swell from the ENE. That’s a rare treat, with no wind to mess it up.
Tuesday the 22nd brings the biggest swell of the forecast, a solid 7ft from the ENE. That’s expert territory, but the period is only 8 seconds, so it’ll be a bit short and dumpy. The morning wind is light offshore, so it’ll be clean. The combined energy is strong (767). This is the biggest day, but it’s not for everyone.
After that, it fades. There’s a late blip on Friday the 25th with a long-period 6ft SSW groundswell (14 seconds), but the wind is light cross-onshore. That’s a powerful wave, but with a very long period at a beach break, it might be tricky. It’s promising but a week and a half out, so don’t count on it.
Water temp is average for this time of year, nothing wild.
My picks: Saturday the 19th morning for the cleanest, most fun waves, and Tuesday the 22nd morning for the biggest push if you’re up for it. Keep an eye on that 25th too, but treat it as a long shot.
Rusty.
Short Range ForecastHeavy rain (total 53mm), heaviest during Mon morning. Warm (max 22°C on Sat night, min 19°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Tue night. Warm (max 22°C on Fri morning, min 17°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the ENE by Fri morning). | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 11 | S 10 | SSW 8 | SSW 8 | S 7 | S 9 | S 12 | SSW 11 | S 10 | SSW 10 | S 11 | S 13 | S 12 | S 9 | S 10 | S 12 | S 11 | S 11 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 58 | 51 | 127 | 201 | 156 | 215 | 141 | 198 | 164 | 230 | 110 | 202 | 894 | 442 | 573 | 1154 | 617 | 483 | 387 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-off | cross-off | off | on | on | on | cross-on | on | on | cross-on | cross-off | cross-off | off | off | cross-off | off |
High Tide | 3:11AM1.10m | 3:31PM0.94m | 3:44AM1.06m | 3:49PM0.92m | 4:19AM0.99m | 4:10PM0.88m | 4:56AM0.91m | 4:35PM0.84m | 5:41AM0.82m | 5:06PM0.79m | 6:47AM0.74m | 5:49PM0.72m | |||||||
Low Tide | 9:18PM0.17m | 9:47AM0.10m | 9:50PM0.15m | 10:21AM0.19m | 10:25PM0.15m | 10:56AM0.29m | 11:03PM0.17m | 11:36AM0.38m | 11:49PM0.21m | 12:27PM0.47m | 00:48AM0.27m | 1:39PM0.53m | 2:05AM0.30m | ||||||
 |  |  |  |  |  |  |  | | | | |  | | | |  | | | |
 | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — |
 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — |
mm | 2 | — | 2 | 18 | 22 | 6 | — | — | 3 | 17 | 1 | 1 | 1 | — | — | — | — | — | — |
Temp °C | 22 | 20 | 20 | 19 | 19 | 20 | 20 | 21 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 22 | 21 | 19 |
Feels °C | 23 | 22 | 21 | 18 | 19 | 20 | 21 | 21 | 19 | 19 | 18 | 17 | 17 | 19 | 17 | 15 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | SSW 8 | SSW 8 | S 7 | S 9 | E 7 | SSW 11 | S 10 | ESE 8 | ESE 8 | S 13 | S 12 | S 9 | S 10 | S 12 | S 11 | S 11 | S 11 |
| kJ | 58 | 51 | 127 | 201 | 156 | 215 | 117 | 198 | 164 | 85 | 88 | 202 | 894 | 442 | 573 | 1154 | 617 | 483 | 387 |
Swell 2 Height (m) Direction Period (s) | SW 5 | SW 5 | E 8 | S 14 | S 13 | S 13 | S 8 | ESE 7 | ESE 7 | SSE 8 | S 11 | ESE 8 | ESE 7 | S 14 | S 13 | ESE 9 | S 14 | SSE 14 | SSW 10 |
| kJ | 11 | 11 | 37 | 16 | 55 | 83 | 131 | 79 | 71 | 28 | 110 | 47 | 18 | 102 | 276 | 35 | 142 | 198 | 95 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | S 12 | S 11 | SSE 9 | ESE 8 | S 12 | SSE 8 | SSE 9 | SSE 8 | S 14 | S 10 | ESE 11 | ESE 10 | ESE 10 | — | ESE 9 | — | ESE 11 |
| kJ | 21 | 37 | 11 | 2 | 17 | 22 | 141 | 73 | 68 | 27 | 57 | 69 | 22 | 35 | 36 | — | 15 | — | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 6 | E 8 | E 6 | — | — | SW 2 | SSW 10 | SW 5 | SSW 8 | — | — | — | ENE 3 | E 5 | E 6 | E 6 |
| kJ | — | — | — | 81 | 84 | 68 | — | — | 1 | 230 | 57 | 145 | — | — | — | 6 | 49 | 134 | 141 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 66 | 10 | 0 | 10 | 0 | 60 | 60 | 247 | 66 | 58 | 58 | 77 | 0 | 10 | 0 | 25 | 54 | 25 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.
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